Ecology and Evolution (Part IV)
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28 terms
Terms | Definitions |
|---|---|
 Lamarck's evolution | A small change would make a new species |
| Darin/Wallace's evolution | Everything must be passed down through genes |
| Which one is accepted as theory and why? | Darwin becuase Lamarcks has been proven wrong... |
| Specialization | A disnt new species |
| Evolutionary radiation | A change of a species |
| Mutation | A change from the regular |
| Are mutations always helpful? Why or why not? | No some make things harder some make it worse |
| How can mutations lead to evolution | They are passed by genes then they start a whole new speice |
| How evolution of whales different from the norm | It started so much smaller |
| What could have happened to cause the move from land to water? | mutations made new legs and such |
| What common ancestor do whales share with cows, sheep, and pigs | Fish |
| Cladogram | A family tree |
| How does studying DNA help scientists create cladograms? | You can further comprehend their past |
| How do you tell which species on an evolutionary tree are most closely related? | They have the closest common ancestor |
| How can you use a cladogram to hypothesize about the traits of extinct species | It willl determine the past |
| Derived characteristics | Characterisitict that has been past down |
| Problems with cladistics | They are not always accurate |
| Why is it incorrect to say humans evolved from lizards or that we used to be gorillas | Because they have changed more since the past |
| Why do scientists classify the crocodile as a reptile even though it is more closely related to birds than other reptiles? | It looks more like a reptiles |
| Difference between divergent evolution and convergent evolution | Divergent they start at the same spot then change and convergent started at different sports but then have ended up together |
| Give example of each phenomenon | Birds and bats and alligator and parrots |
| Lineage | The past ancestor of a species |
| Common ancestor | A point when two or more species came but then split |
| Common ancestor of all life | fish |
| Adaption that enabled vertebrates to move from their aquatic habitats to the land Describe the egg | The growth of limbs. They were born to have limbs |
| What is difference between biped, quadruped, and a tetrapod | Bipeds have no limbs Quadrupeds are two limbed and Tetrapod have four limbs |
| Which of those terms describe humans | ..Tetrapod |
| Discuss the histories of the dodo bird and pigeon | They were both species on earth but then the pigeon evolved from the DODO bird. Now the dodo is extinct |
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